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|
.TH "DOVEADM-DEDUPLICATE" "1" "March 2025" "78ffb79" "Dovecot"
.SH "NAME"
\fBdoveadm-deduplicate\fR - Expunge duplicate messages
.SH "SYNOPSIS"
.P
\fBdoveadm\fR \[lB]\fIGLOBAL OPTIONS\fR\[rB] \fBdeduplicate\fR \[lB]\fB-u\fR \fIuser\fR | \fB-A\fR | \fB-F\fR \fIfile\fR | \fB--no-userdb-lookup\fR\[rB] \[lB]\fB-S\fR \fIsocket_path\fR\[rB] \[lB]\fB-m\fR\[rB] \fIsearch_query\fR
.SH "DESCRIPTION"
.P
. doveadm(1) will delete the newest duplicated messages from the mailbox and keep the oldest.
.P
Deduplication across multiple mailboxes is not supported.
.SH "GLOBAL OPTIONS"
.P
Global doveadm(1)
.P
\fB-D\fR
.RS 0
.RS 4
.P
Enables \fIverbosity\fR and debug messages.
.RE 0
.RE 0
.P
\fB-O\fR
.RS 0
.RS 4
.P
Do not read any config file, just use defaults. The \fBdovecot_storage_version\fR setting defaults to the latest version, but can be overridden with
.RE 0
.RE 0
.P
\fB-k\fR
.RS 0
.RS 4
.P
Preserve entire environment for doveadm, not just \fBimport_environment\fR setting.
.RE 0
.RE 0
.P
\fB-v\fR
.RS 0
.RS 4
.P
Enables verbosity, including progress counter.
.RE 0
.RE 0
.P
\fB-i\fR \fIinstance-name\fR
.RS 0
.RS 4
.P
If using multiple Dovecot instances, choose the config file based on this instance name.
.P
See \fBinstance_name\fR setting for more information.
.RE 0
.RE 0
.P
\fB-c\fR \fIconfig-file\fR
.RS 0
.RS 4
.P
Read configuration from the given \fIconfig-file\fR. By default it first reads config socket, and then falls back to \fI/etc/dovecot/dovecot.conf\fR. You can also point this to config socket of some instance running compatible version.
.RE 0
.RE 0
.P
\fB-o\fR \fIsetting\fR\fB=\fR\fIvalue\fR
.RS 0
.RS 4
.P
Overrides the configuration \fIsetting\fR from \fI/etc/dovecot/dovecot.conf\fR and from the userdb with the given \fIvalue\fR. In order to override multiple settings, the \fB-o\fR option may be specified multiple times.
.RE 0
.RE 0
.SH "OPTIONS"
.P
\fB-A\fR
.RS 0
.RS 4
.P
If the \fB-A\fR option is present, the \fIcommand\fR will be performed for all users. Using this option in combination with system users from \fBuserdb { driver = passwd }\fR is not recommended, because it contains also users with a lower UID than the one configured with the \fBfirst_valid_uid\fR setting.
.P
When the SQL userdb module is used, make sure that the \fBuserdb_sql_iterate_query\fR setting setting matches your database layout.
.P
When using the LDAP userdb module, make sure that the \fBuserdb_fields\fR setting and \fBuserdb_ldap_iterate_fields\fR setting settings match your LDAP schema. Otherwise doveadm(1) will be unable to iterate over all users.
.RE 0
.RE 0
.P
\fB-F\fR \fIfile\fR
.RS 0
.RS 4
.P
Execute the \fIcommand\fR for all the users in the \fIfile\fR. This is similar to the \fB-A\fR option, but instead of getting the list of users from the userdb, they are read from the given \fIfile\fR. The \fIfile\fR contains one username per line.
.RE 0
.RE 0
.P
\fB--no-userdb-lookup\fR
.RS 0
.RS 4
.P
Do not perform userdb lookup. Use the \fBUSER\fR environment variable to specify the username.
.RE 0
.RE 0
.P
\fB-m\fR
.RS 0
.RS 4
.P
option is given, doveadm(1) will deduplicate by Message-Id header. By default deduplication will be done by message GUIDs.
.RE 0
.RE 0
.P
\fB-S\fR \fIsocket_path\fR
.RS 0
.RS 4
.P
The option's argument is either an absolute path to a local UNIX domain socket, or a hostname and port (\fIhostname\fR:\fIport\fR), in order to connect a remote host via a TCP socket.
.P
This allows an administrator to execute doveadm(1) mail commands through the given socket.
.RE 0
.RE 0
.P
\fB-u\fR \fIuser/mask\fR
.RS 0
.RS 4
.P
Run the \fIcommand\fR only for the given \fIuser\fR. It's also possible to use '\fB*\fR' and '\fB?\fR' wildcards (e.g. -u *@example.org).
.RE 0
.RE 0
.SH "ARGUMENTS"
.P
\fIsearch_query\fR
.RS 0
.RS 4
.P
' will be sufficient. See doveadm-search-query(7) for details.
.RE 0
.RE 0
.SH "EXAMPLE"
.P
This example shows how to list and expunge duplicate messages from a mailbox.
.P
.RS 2
.nf
doveadm -f table fetch -u jane 'guid uid' mailbox a_Box | sort
.fi
.RE
.P
.RS 2
.nf
guid uid
8aad0f0a30169f4bea620000ca356bad 18751
8aad0f0a30169f4bea620000ca356bad 18756
923e301ab9219b4b4f440000ca356bad 18748
923e301ab9219b4b4f440000ca356bad 18753
...
.fi
.RE
.P
.RS 2
.nf
doveadm deduplicate -u jane mailbox a_Box
doveadm -f table fetch -u jane 'guid uid' mailbox a_Box | sort
.fi
.RE
.P
.RS 2
.nf
guid uid
8aad0f0a30169f4bea620000ca356bad 18751
923e301ab9219b4b4f440000ca356bad 18748
a7999e1530739c4bd26d0000ca356bad 18749
...
.fi
.RE
.SH "REPORTING BUGS"
.P
Report bugs, including \fIdoveconf -n\fR output, to the Dovecot Mailing List \fI\(ladovecot@dovecot.org\(ra\fR. Information about reporting bugs is available at: https://dovecot.org/bugreport.html
.SH "SEE ALSO"
.P
doveadm(1), doveadm-import(1)
|
